Grommet



FIG. 1 is an isometric view of a top, front, and right side of an ornamental design for a grommet;

FIG. 2 is an isometric view of a bottom, front, and right side of the grommet of FIG. 1 ;

FIG. 3 is a right side elevational view of the grommet of FIG. 1 , the left side elevational view being an identical image thereof; and,

FIG. 4 is a front elevational view of the grommet of FIG. 1 , the rear elevational view being an identical image thereof.

The broken lines in the drawings illustrate portions of the grommet and form no part of the claimed design. The dash-dot-dash broken lines in the drawings define the bounds of the claim and form no part thereof. 

CLAIM The ornamental design for a grommet, as shown and described. 